Beijing Qi-Red Electric Power Technology Co., Ltd.

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Patents Grantslast 30 patents

Information Patent Grant
Optical fiber current transformer with optical fiber temperature ac...
- Patent number 8,861,899
- Issue date Oct 14, 2014
- Beijing Qi-Red Electric Power Technology Co., Ltd.
- Shudong Wu
- G01 - MEASURING TESTING
Information Patent Grant
Optical fiber temperature sensor
- Patent number 8,449,178
- Issue date May 28, 2013
- Beijing Qi-Red Electric Power Technology Co., Ltd.
- Shudong Wu
- G01 - MEASURING TESTING

Patents Applicationslast 30 patents

Information Patent Application
Optical fiber temperature sensor
- Publication number 20110128990
- Publication date Jun 2, 2011
- Beijing Qi-Red Electric Power Technology Co., Ltd.
- Shudong Wu
- G01 - MEASURING TESTING
Information Patent Application
Optical fiber current transformer with optical fiber temperature ac...
- Publication number 20110060544
- Publication date Mar 10, 2011
- Beijing Qi-Red Electric Power Technology Co., Ltd.
- Shudong Wu
- G01 - MEASURING TESTING

Trademarklast 30 trademarks